1 #ifndef _ASM_X86_IOMMU_H 2 #define _ASM_X86_IOMMU_H 3 4 extern void pci_iommu_shutdown(void); 5 extern void no_iommu_init(void); 6 extern struct dma_map_ops nommu_dma_ops; 7 extern int force_iommu, no_iommu; 8 extern int iommu_detected; 9 extern int iommu_pass_through; 10 11 /* 10 seconds */ 12 #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) 13 14 #endif /* _ASM_X86_IOMMU_H */ 15